Grain-separator



(N 0 Model.)

3. GRUBE. GRAIN SBPAR'ATDR.

No. 252,314; Patented Jail. 17,1882,

N PETERS. Photu-Lilhognpher. Walhingfi m n. c,

, UNITED STATES PATENT OFFICE.

JEFFERSON GRUBE, oE AUBURN," INDIANA.

GRAlN-SEPA'RATOR.

SIEGIFIGATION forming part of Letters Patent No. 252,314, dated January 1'7, 1882.

l Application filed March14, 18 81j ,tNto'modelJ' V V To all whom it may concern, Be it known'that I, JEFFERSON GaUBE, a citizen of the United States, residing atAuburn, in the county of De Kalb anti State of Indiana, have invented certain new and useful Improvements in Grain-Separators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference beinghad to'the accompanying drawings, and to the letters or figures of reference marked thereon,which form a part of this specification.

q The invention relates to grain-separators o'f the class employing a fan; and the novelty consists in the construction and arrangement of parts, as will be more fully hereinafter set forth,and'speciiically pointedoutin the claim.

The invention is designed as an improvement upon the device granted to me December 7, 1880, in which differentially-inclined boards served, in connection with the fan, for the useful purposes therein set forth.

The object of this iuventioinis to improve upon the construction therein set i'orth,aud to that end I employ-in this device, between the sides of a rectangular frame composed of inclined side boards and proper end braces, aseries of regularlygraduated Y different -sized .boards pivotedb'etweeu the sides, and all connected pivotally to a longitudinal bar having a ratchet portion, which passes through a kerf in the end board located in the larger end of the frame, to which end board is secured a spring-arm, which operates in the rack portion to allow theadjustmeut at will of the inclines of the boards, and to thus control the feed to the shoe, and also the volume of current, as

will be obvious from the construction shown in the drawings.

The invention, in connection with the device set forth and describe'din the patent previously 7 boards!) may be varied at will.v

referred to,".is fully shown in the accompanying drawings, whichform a partof this specifiG illlOI], and in which- Figure lis a perspective view, partially in struction and mode of operation of the same,

referring to-the drawings, in which similar letters of reference indicate like parts in all the figures. a

" A represents the inclined side boards, B

- thecross-boa-rd at .the smaller eudsthereof,

and B the similarcross-board at the larger ends, which together constitutetthe" frame. In this'fraine are pivoted, at points marked a c, the boards 0, which are regularly graduated in size from either end to corresp'ind approximately with the graduation of the side pieces, A. These graduated boards are pivoted at or near their lower edges to a rack-bar, D, having a toothed portion, d, within which operates a spring-pawl,f, secured to the end board, B-. It will be observed that the pitch of the In case the boards are made of wood the ends are received in slots Z of castings L, having pivotinglugs, as shown in Fig. 3.

What I claim as new, and desire to secure I by Letters Patent of the United States, is-

Asan improvement on my device as patented to me December 7, 1880, No. 235,223,

the graduated partitions, in combination with means for adjusting the same, substantially as and for the purposes hereinbefore set forth.

In testimony whereof I affix my signature in presence of two witnesses.

. JEFFERSON canes.

Witnesses:

GEORGE B. ADAMS, A, S. LEAS. 

